It's very kind of you to come and see us off .   My pleasure.What a pity you have to leave so soon !   We would stay longer . but I've got to attend a meeting tomorrow morning . Thank you for your warm hospitality .   You're welcome . Maybe next time we'll come to see you .   My wife and I will look forward to it .   I promise the next holiday I have we're coming to visit . Oh , what's your flight number ?   lt's Flight No . 302 , Northwest Orient Airlines .   They just announced the boarding call .   Then we've got to get going .   OK . Bon voyage and a safe landing .   Thank you again for all your help .   Bye . 